//
// ========================================================================
// Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server.handler;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.*;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.HandlerWrapper;
import org.hamcrest.Matchers;
import org.junit.Test;
public class HandlerTest
{
@Test
public void testWrapperSetServer()
{
Server s=new Server();
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
a.setHandler(b);
b.setHandler(c);
a.setServer(s);
assertThat(b.getServer(),equalTo(s));
assertThat(c.getServer(),equalTo(s));
}
@Test
public void testWrapperServerSet()
{
Server s=new Server();
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
a.setServer(s);
b.setHandler(c);
a.setHandler(b);
assertThat(b.getServer(),equalTo(s));
assertThat(c.getServer(),equalTo(s));
}
@Test
public void testWrapperThisLoop()
{
HandlerWrapper a = new HandlerWrapper();
try
{
a.setHandler(a);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testWrapperSimpleLoop()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
a.setHandler(b);
try
{
b.setHandler(a);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testWrapperDeepLoop()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
a.setHandler(b);
b.setHandler(c);
try
{
c.setHandler(a);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testWrapperChainLoop()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
a.setHandler(b);
c.setHandler(a);
try
{
b.setHandler(c);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testCollectionSetServer()
{
Server s=new Server();
HandlerCollection a = new HandlerCollection();
HandlerCollection b = new HandlerCollection();
HandlerCollection b1 = new HandlerCollection();
HandlerCollection b2 = new HandlerCollection();
HandlerCollection c = new HandlerCollection();
HandlerCollection c1 = new HandlerCollection();
HandlerCollection c2 = new HandlerCollection();
a.addHandler(b);
a.addHandler(c);
b.setHandlers(new Handler[]{b1,b2});
c.setHandlers(new Handler[]{c1,c2});
a.setServer(s);
assertThat(b.getServer(),equalTo(s));
assertThat(c.getServer(),equalTo(s));
assertThat(b1.getServer(),equalTo(s));
assertThat(b2.getServer(),equalTo(s));
assertThat(c1.getServer(),equalTo(s));
assertThat(c2.getServer(),equalTo(s));
}
@Test
public void testCollectionServerSet()
{
Server s=new Server();
HandlerCollection a = new HandlerCollection();
HandlerCollection b = new HandlerCollection();
HandlerCollection b1 = new HandlerCollection();
HandlerCollection b2 = new HandlerCollection();
HandlerCollection c = new HandlerCollection();
HandlerCollection c1 = new HandlerCollection();
HandlerCollection c2 = new HandlerCollection();
a.setServer(s);
a.addHandler(b);
a.addHandler(c);
b.setHandlers(new Handler[]{b1,b2});
c.setHandlers(new Handler[]{c1,c2});
assertThat(b.getServer(),equalTo(s));
assertThat(c.getServer(),equalTo(s));
assertThat(b1.getServer(),equalTo(s));
assertThat(b2.getServer(),equalTo(s));
assertThat(c1.getServer(),equalTo(s));
assertThat(c2.getServer(),equalTo(s));
}
@Test
public void testCollectionThisLoop()
{
HandlerCollection a = new HandlerCollection();
try
{
a.addHandler(a);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testCollectionDeepLoop()
{
HandlerCollection a = new HandlerCollection();
HandlerCollection b = new HandlerCollection();
HandlerCollection b1 = new HandlerCollection();
HandlerCollection b2 = new HandlerCollection();
HandlerCollection c = new HandlerCollection();
HandlerCollection c1 = new HandlerCollection();
HandlerCollection c2 = new HandlerCollection();
a.addHandler(b);
a.addHandler(c);
b.setHandlers(new Handler[]{b1,b2});
c.setHandlers(new Handler[]{c1,c2});
try
{
b2.addHandler(a);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testCollectionChainLoop()
{
HandlerCollection a = new HandlerCollection();
HandlerCollection b = new HandlerCollection();
HandlerCollection b1 = new HandlerCollection();
HandlerCollection b2 = new HandlerCollection();
HandlerCollection c = new HandlerCollection();
HandlerCollection c1 = new HandlerCollection();
HandlerCollection c2 = new HandlerCollection();
a.addHandler(c);
b.setHandlers(new Handler[]{b1,b2});
c.setHandlers(new Handler[]{c1,c2});
b2.addHandler(a);
try
{
a.addHandler(b);
fail();
}
catch(IllegalStateException e)
{
assertThat(e.getMessage(),containsString("loop"));
}
}
@Test
public void testInsertWrapperTail()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
a.insertHandler(b);
assertThat(a.getHandler(),equalTo(b));
assertThat(b.getHandler(),nullValue());
}
@Test
public void testInsertWrapper()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
a.insertHandler(c);
a.insertHandler(b);
assertThat(a.getHandler(),equalTo(b));
assertThat(b.getHandler(),equalTo(c));
assertThat(c.getHandler(),nullValue());
}
@Test
public void testInsertWrapperChain()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
HandlerWrapper d = new HandlerWrapper();
a.insertHandler(d);
b.insertHandler(c);
a.insertHandler(b);
assertThat(a.getHandler(),equalTo(b));
assertThat(b.getHandler(),equalTo(c));
assertThat(c.getHandler(),equalTo(d));
assertThat(d.getHandler(),nullValue());
}
@Test
public void testInsertWrapperBadChain()
{
HandlerWrapper a = new HandlerWrapper();
HandlerWrapper b = new HandlerWrapper();
HandlerWrapper c = new HandlerWrapper();
HandlerWrapper d = new HandlerWrapper();
a.insertHandler(d);
b.insertHandler(c);
c.setHandler(new AbstractHandler()
{
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
}
});
try
{
a.insertHandler(b);
fail();
}
catch(IllegalArgumentException e)
{
assertThat(e.getMessage(),containsString("bad tail"));
}
}
}